Hose-nozzle



(No Model.)

P. W. ROBBRTSHAW.

HOSE NOZZLE.

IlNiTnn STaTns PATENT @Tirion FREDERICK IV. ROBER'ISIIAIV, OF PITTSBURG,PENNSYLVANIA.

HOSEHNOZZLE.

SPECIFICATION forming part of Letters Patent No. 579,409, dated March23, 1897.

Application liled May 18, 1896. Serial No. 592,082. (No model.)

To @ZZ whom it may concern:

Beit known that I, FREDERICK W. RoB- nnrsnnw, a resident of Pittsburg,in the county of Allegheny and State of Pennsylvania, have invented anew and useful Improvement in Hose-Nozzles; and I do hereby declare thefollowing to be a full, clear, and exact description thereof.

My invention relates to hose-nozzles, its object being to provide acheap and simple form of hose-nozzle, especially for the spraying ofliquids containing chemicals, such as for the spraying of certain suchliquids on bushes, fruits, dac., as is found necessary in connectionwith the killing of insects, though the nozzle has certain advantageswhen employed in connection with the spraying of any liquid. Its objectis to provide for the formation of either a spiral spray or a straightstream, and in addition to that to provide for a stream of greater bulkfrom the same nozzle, such as where the nozzle is connected with ahandpump and it is desired to employ it for the washing of vehicles orlike purposes around an ordinary country stable or barn.

To these ends my invention consists, generally stated, in combining in ahose-nozzle a valve-case having a side entrance-pipe and a valve-spaceabove and below the port of such pipe, a valve therein having a spiralface and providing a spiral stream when above the port and seatingitseli:` below the port, so as to form a straight stream.

It also consists in combining with such parts a cap for the case at thedischarge end, having a central opening and having a washer fittingtherein and forming a tight joint with the case and also forming a tightjoint with the flat upper face of the valve when forced against thesame.

It also consists in certain other improvements, which will behereinafter more fully set forth and claimed.

To enable others skilled in the art to make and use my invention, I willdescribe the same more fully, referring to the accompanying drawings, inwhich Figure I is a longitudinal sectional View of the preferred form ofhose-nozzle, showing the valve in full lines and being made of enlargedsize, so as to fully illustrate the invention, the valve being indicatedin the position for forming a spiral stream. Fig. 2 is a like viewshowing the valve seated to close the nozzle and illustrating in dottedlines the lowest position, which provides for a straight stream. Figs. 3and 4 are like views of another form of nozzle embodying the invention,Fig. 3 showing the valve in position for forminga spiral spray, whileFig. 4 shows it in the lowest position as forming a straight stream.

Like letters of reference indicate like parts in each of the figures.

As the form of the apparatus shown in Figs. l and 2 is the preferredform, I will first describe it.

Formed in a single casing are the valve-case a and the side or feedingpipe h, which communicates with the valve-case about midway of itsvalve-chamber a', leaving, as above stated, a valve-space c above thepipe b and a valve-space d below the same, said valvespaces being partsof the valve-chamber. The valve-chamber is threaded throughout, and thevalve e fits this threaded chamber loosely, Jthe outer surface of suchvalve being threaded and thus forming a spiral face, as

above stated, the spiral face of the valve fittingthe thread of thevalve-chamberso loosely that there is space enough left to permit of thepassage of the liquid between the same, which imparts the spiral motionthereto and' give the spiral spraying-stream. The valve e has thevalve-stem e, which extends down through the packing-chamber, saidpacking-chamber being formed at the base of the valve-chamber and beingpart of the valve-case. It will be noticed that this packing-chamber fis of greater diameter than the valve-chamber, leaving a shoulder dbetween them, against which a metal washer g iits, the washer being madeof a loosely-fitting centrally-perforated plate dropping to the bottomof the packingchamber against said shoulder and the packing surroundingthe same and fitting within the packing-chamber f, as at g', while thegland h screws into the chamber and. compresses the packing against thewasher y. By this construction a very simple and easy arrangement forcleaning the nozzle is provided, as it is only necessary to unscrew thegland h and then by means of the handle e2 unscrew the valve and draw itout of the IOO valve-chamber, which leaves the valve-chainber entirelyfree for cleaning. To reinsert the same, the valve is screwed into thevalvechamberand the washer and packing dropped to place, and the glandis screwed to place, all of which can be done in a minute. To provide atight joint and so close the valve of the nozzle, I provide the cap k,which cap screws onto the top of the valve-case d and,

as shown in the drawings, has a rubber or like washer fi, which forms atight joint between the cap and the valve-case, so that when the fiatface of the valve is forced against said washer a tight joint is formedbetween them which closes the nozzle. It will be noticed that the cap 7shas a central opening 7c', this opening permitting the escape of theliquid, and it being found in practical use that though the spiralmotion is given to the liquid by means of the valve and the liquid isthen forced inwardly toward this central orifice 7c it will escapetherefrom in the form of a spiral spray on account of the motion givento the valve. The valve has the central stem e3, iittin g in the orificec/,which serves to prevent the clogging of such orifice, said stemfitting the same loosely and serving to aid in forming the spiral spray.It will of course be seen that a very small opening for spray isprovided in this valve and for the general purposes for which it isintended, as above set forth, that is the most desirable, especiallywhen it is employed for spraying chemicals over plants or flowers, asabove stated. It is,

however, very desirable that the same nozzle shall be capable of beingemployed for use in connection with other operations requiringa largerstream, and for this purpose the side or feeding pipe Z9 has thestraight independent nozzle-orifice m, which is formed in direct linewith the bodyb and the threaded socket b2 of the feeding-pipe and whichis closed by a solid or imperforate cap m', which screws onto the sameand has the rubber or like washer m2 therein, by which a tight joint isformed. By ,removing this cap m and by closing the valve against the capk the pump can be used to throw a stream of greater diameter, such asfor vehicle-washing or like purposes, the nozzle m having an orifice ofsufficient size for such purpose.

lVhen the valve above described is in use and it is intended to obtain aspiral spray from the same, the hose is connected to the socket b2 andthe valve is set at any suitable point between the inlet-port b of thepipe b2 and the exit of the nozzle, that is, in the valvespace c, andunder a pumping action or any other way of obtaining pressure of theliquid it will pass into the valve-chamber below the valve -e and willthen pass around between the threaded or spiral face on the periphery ofthe valve and the inner face of the valvechamber, a spiral motion beingthus imparted to it, which will continue to govern the action of theliquid as it passes out through the orifiee k of the cap. As the valveis moved up or down it will cover a greater or less part of theinlet-port b and will in that way control the stream. When it is desiredto provide a full or straight stream, the valve is screwed down into thevalve-space d below the inletport b', which permits the iiow of theliquid into the valve-chamber and thence directly into the orifice 7c',forming a straight stream, the force of which is governed by the pumpingaction. When it is desired to close the nozzle, the fiat face of thevalve-body can be forced against the washer t' and so form a tight jointtherewith which closes the same, the pressure of the liquid enteringbelow the valve serving to hold it to place. In such case the auxiliarynozzle m can be uncovered and used for the purpose above indicated.

A The modification of the nozzle shown in Figs. 3 and 4 is somewhatdifferent, but has several features common to both, which will now bedescribed. In the first place,as shown in the drawings, it has avalve-casing m with a feeding-pipe p, having an inlet-port p', thevalve-chamber having straight walls and having valve-spaces n n2 aboveand below the inlet-portp'. It also has a like packing-chamber q belowthe valve-ehamber, containing a washer q and closed by a gland q2. Thevalve s itself is made to fit the chamber n neatly, having straightouter walls, and it has on its face the spiral grooves s', which permitthe flow of the liquid spirally around the valve and so impart thespiral motion thereto, obtaining practically the same result as theconstruction shown in Figs. 1 and 2. The valve has the val ve-stem t,extending through packing-chamber and stuffing-box, and is provided withthe ring t', by which it is operated, and it slides up and down withinthe chamber.

It is evident that as there is no special means between the valve andits chamber for holding it in any desired position, and as the pressureof the liquid would force it against the cap, some means must beprovided to hold the valve in such position as to give a spiral stream,and for that purpose I pivot to the gland q2 the lever u, having a notcha therein, which engages with the hand-wheel t/ of the valve and holdsit in the proper position for such action. In case, therefore, the valveis to be used for forming the spiral spray above referred to it issimply drawn out into proper position and engaged by the lever u, whichholds it firmly in that position, giving the desired spray. In case itis desired to form a straight stream it is drawn back below theentrance-pipe p' of the inletepipe and permits the flow of the liquidbeyond it, and thence directly to the orifice in the cap. In case it isdesired to close the nozzle the lever a is drawn out of the way and thevalve is pushed forward against the cap, and the fiat face of the valvefits around the flat face of the washer t, and the pressure of theliquid entering the supply-pipe below the valve braces it against theface of the washer and so forms a tight joint.

ICO

IIO

What I claim as rny invention, and desire to secure by Letters Patent,is-

l. In a hose-nozzle, the combination with a valve-oase having a sidefeeding-pipe and valve-spaces above and below the saine, of a valvehaving a spiral faoe and providing a spiral stream when above the portand seating itself below the port to forln a straight stream, a capscrewed to the oase at the discharge end, and having a central oriee anda washer iitting therein andforlning a tight joint with the ease, andextending inwardly so as to form a tight joint with the valve whenforced against the same, substantially as set forth.

2. In a hose-nozzle, the Combination with a valve-box having afeeding-pipe entering the side of the valve-ease, of a valve within thevalve-oase and controlling the main discharge-orifice and an auxiliarynozzle-orifice FREDERICK W. ROBERTSHAW.

Witnesses:

RoBT. D. TOTTEN, ROBERT C. ToTTEN.

